Microchannel Plates
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چکیده
A typical MCP consists of about 10,000,000 closely packed channels of common diameter which are formed by drawing, etching, or firing in hydrogen, a lead glass matrix. Typically, the diameter of each channel is ~ 10 microns. Each channel acts as an independent, continuous dinode photomultiplier. In astronomy, and in the many other fields that use MCPs, the detectors are generally used for distortionless imaging with very high spatial resolution.
منابع مشابه
Entropy Generation Due to Laminar Incompressible Forced Convection Flow Through Parallel-Plates Microchannel
The entropy generation due to steady laminar forced convection fluid flow through parallel plates microchannel is investigated numerically. The effect of Knudsen, Reynolds, Prandtl, Eckert numbers and the nondimensional temperature difference on entropy generation within the microchannel is discussed. The fraction of the entropy generation due to heat transfer to the total entropy generation wi...
متن کاملPhoton counting with small pore microchannel plates
We describe the operation of microchannel plates (MCPs) with 3:2mm diameter channels as photon counting detectors of soft X-rays. Gain and temporal resolution measurements are compared with theoretical scaling laws for channel diameter. A minimum pulse width of 264 ps is observed for a two stage multiplier at a total bias voltage of 1930V. r 2006 Elsevier B.V. All rights reserved. PACS: 95.55. ...
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A new material for microchannel plates (MCP) is proposed — anodic aluminum oxide. Microchannel plates made of this material may be much cheaper than with conventional lead glass MCP. Also a significantly smaller channel diameter (up to 70 nm) is easily achievable, which means better spatial resolution and the possibility to operate in strong magnetic fields. Methods and means are developed for ...
متن کاملNano-engineered ultra high gain microchannel plates
Highly localized and very fast electron amplification of microchannel plates (MCP) enables a large number of high resolution and high sensitivity detection technologies, which provide spatial and/or temporal information for each detected photon/electron/ion/neutron. Although there has been significant progress in photocathode and readout technologies the MCPs themselves have not evolved much fr...
متن کاملThe latest developments of high gain Si microchannel plates
We present our latest results in the development of Silicon micromachined microchannel plates, which open completely new possibilities in the detector technologies. For the first time Z-stacks of Si microchannel plates with pore bias of 5-8 degrees were tested in a high gain photon counting imaging detector without any post-amplification stage with conventional glass MCP's. The gain of Z-stacks...
متن کاملFabrication and characterization of monolithically integrated microchannel plates based on amorphous silicon
Microchannel plates are vacuum-based electron multipliers for particle--in particular, photon--detection, with applications ranging from image intensifiers to single-photon detectors. Their key strengths are large signal amplification, large active area, micrometric spatial resolution and picosecond temporal resolution. Here, we present the first microchannel plate made of hydrogenated amorphou...
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